5dd346007b
clang-format BinPack settings have been disabled to make sure that the VTK-m style guideline is obeyed.
655 lines
22 KiB
C++
655 lines
22 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_worklet_ExtractStructured_h
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#define vtk_m_worklet_ExtractStructured_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/DeviceAdapter.h>
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#include <vtkm/cont/DynamicArrayHandle.h>
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#include <vtkm/cont/ErrorBadValue.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/ScatterCounting.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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namespace vtkm
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{
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namespace worklet
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{
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//
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// Distribute input point/cell data to subset/subsample output data
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//
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struct DistributeData : public vtkm::worklet::WorkletMapField
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{
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typedef void ControlSignature(FieldIn<> inIndices, FieldOut<> outIndices);
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typedef void ExecutionSignature(_1, _2);
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typedef vtkm::worklet::ScatterCounting ScatterType;
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VTKM_CONT
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ScatterType GetScatter() const { return this->Scatter; }
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template <typename CountArrayType, typename DeviceAdapter>
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VTKM_CONT DistributeData(const CountArrayType& countArray, DeviceAdapter device)
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: Scatter(countArray, device)
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{
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}
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template <typename T>
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VTKM_EXEC void operator()(T inputIndex, T& outputIndex) const
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{
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outputIndex = inputIndex;
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}
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private:
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ScatterType Scatter;
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};
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//
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// Extract subset of structured grid and/or resample
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//
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class ExtractStructured
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{
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public:
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ExtractStructured() {}
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//
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// Create map of input points to output points with subset/subsample
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//
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class CreatePointMap : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldIn<IdType> index, FieldOut<IdComponentType> passValue);
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typedef _2 ExecutionSignature(_1);
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vtkm::Id RowSize;
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vtkm::Id PlaneSize;
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vtkm::Bounds OutBounds;
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vtkm::Id3 Sample;
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bool IncludeBoundary;
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VTKM_CONT
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CreatePointMap(const vtkm::Id3& inDimension,
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const vtkm::Bounds& outBounds,
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const vtkm::Id3& sample,
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bool includeBoundary)
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: RowSize(inDimension[0])
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, PlaneSize(inDimension[0] * inDimension[1])
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, OutBounds(outBounds)
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, Sample(sample)
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, IncludeBoundary(includeBoundary)
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{
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}
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VTKM_EXEC
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vtkm::IdComponent operator()(vtkm::Id index) const
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{
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vtkm::IdComponent passValue = 0;
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// Position of this point in the grid
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vtkm::Id k = index / PlaneSize;
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vtkm::Id j = (index % PlaneSize) / RowSize;
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vtkm::Id i = index % RowSize;
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// Turn on points if within the subset bounding box
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vtkm::Id3 ijk = vtkm::Id3(i, j, k);
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if (OutBounds.Contains(ijk))
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{
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passValue = 1;
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}
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// Turn off points not within subsampling
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vtkm::Id3 minPt = vtkm::make_Vec(OutBounds.X.Min, OutBounds.Y.Min, OutBounds.Z.Min);
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vtkm::Id3 value = vtkm::make_Vec(
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(i - minPt[0]) % Sample[0], (j - minPt[1]) % Sample[1], (k - minPt[2]) % Sample[2]);
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// If include boundary then max boundary is also within subsampling
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if (IncludeBoundary)
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{
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if (i == OutBounds.X.Max)
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value[0] = 0;
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if (j == OutBounds.Y.Max)
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value[1] = 0;
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if (k == OutBounds.Z.Max)
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value[2] = 0;
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}
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// If the value for the point is not 0 in all dimensions it is not in sample
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if (value != vtkm::Id3(0, 0, 0))
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{
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passValue = 0;
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}
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return passValue;
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}
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};
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//
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// Create map of input cells to output cells with subset/subsample
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//
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class CreateCellMap : public vtkm::worklet::WorkletMapPointToCell
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{
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public:
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typedef void ControlSignature(CellSetIn cellset,
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WholeArrayIn<IdComponentType> pointMap,
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FieldOutCell<IdComponentType> passValue);
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typedef _3 ExecutionSignature(PointCount, PointIndices, _2);
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vtkm::Id3 InDimension;
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vtkm::Id3 OutDimension;
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vtkm::Id RowSize;
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vtkm::Id PlaneSize;
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VTKM_CONT
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CreateCellMap(const vtkm::Id3& inDimension, const vtkm::Id3& outDimension)
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: InDimension(inDimension)
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, OutDimension(outDimension)
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, RowSize(inDimension[0])
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, PlaneSize(inDimension[0] * inDimension[1])
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{
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}
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template <typename ConnectivityInVec, typename InPointMap>
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VTKM_EXEC vtkm::IdComponent operator()(vtkm::Id numIndices,
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const ConnectivityInVec& connectivityIn,
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const InPointMap& pointMap) const
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{
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// If all surrounding points are in the subset, cell will be also
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vtkm::IdComponent passValue = 1;
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for (vtkm::IdComponent indx = 0; indx < numIndices; indx++)
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{
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if (pointMap.Get(connectivityIn[indx]) == 0)
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{
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passValue = 0;
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}
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}
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// Cell might still be in subset through subsampling
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if (passValue == 0)
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{
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// If the lower left point is in the sample it is a candidate for subsample
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vtkm::Id ptId = connectivityIn[0];
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if (pointMap.Get(ptId) == 1)
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{
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vtkm::Id3 position((ptId % RowSize), ((ptId % PlaneSize) / RowSize), (ptId / PlaneSize));
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vtkm::Id newPtId;
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vtkm::Id3 foundValidPoint(0, 0, 0);
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vtkm::Id3 offset(1, RowSize, PlaneSize);
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for (vtkm::IdComponent dim = 0; dim < 3; dim++)
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{
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if (OutDimension[dim] == 1)
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{
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foundValidPoint[dim] = 1;
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}
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else
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{
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// Check down the dimension for one other sampled point to complete cell
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newPtId = ptId + offset[dim];
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vtkm::Id indx = position[dim] + 1;
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bool done = false;
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while (indx < InDimension[dim] && done == false)
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{
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if (pointMap.Get(newPtId) == 1)
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{
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foundValidPoint[dim] = 1;
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done = true;
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}
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indx++;
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newPtId += offset[dim];
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}
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}
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}
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// If there is a valid point in all dimensions cell is in sample
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if (foundValidPoint == vtkm::Id3(1, 1, 1))
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{
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passValue = 1;
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}
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}
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}
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return passValue;
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}
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};
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//
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// Uniform Structured
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//
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template <typename CellSetType, typename DeviceAdapter>
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vtkm::cont::DataSet ExtractUniform(vtkm::IdComponent outDim,
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const CellSetType& cellSet,
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const vtkm::cont::CoordinateSystem& coordinates,
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const vtkm::Bounds& outBounds,
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const vtkm::Id3& sample,
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bool includeBoundary,
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DeviceAdapter)
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{
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typedef vtkm::cont::ArrayHandleUniformPointCoordinates UniformArrayHandle;
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typedef
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typename UniformArrayHandle::ExecutionTypes<DeviceAdapter>::PortalConst UniformConstPortal;
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// Cast dynamic coordinate data to Uniform type
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vtkm::cont::DynamicArrayHandleCoordinateSystem coordinateData = coordinates.GetData();
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UniformArrayHandle inCoordinates;
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inCoordinates = coordinateData.Cast<UniformArrayHandle>();
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// Portal to access data in the input coordinate system
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UniformConstPortal Coordinates = inCoordinates.PrepareForInput(DeviceAdapter());
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// Sizes and values of input Uniform Structured
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vtkm::Id3 inDimension = Coordinates.GetDimensions();
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// Calculate output subset dimension
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// minBound will not change because first point or cell is always included
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// maxBound is the same if no sampling, or if sample point lands on boundary,
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// or if include boundary is set
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// Otherwise maxBound will be the last stride point
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vtkm::Id3 lastIndex = vtkm::make_Vec(outBounds.X.Max - outBounds.X.Min,
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outBounds.Y.Max - outBounds.Y.Min,
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outBounds.Z.Max - outBounds.Z.Min);
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vtkm::Id3 outDimension = lastIndex + vtkm::Id3(1, 1, 1);
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// Adjust for sampling and include boundary
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for (vtkm::IdComponent dim = 0; dim < outDim; dim++)
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{
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if (sample[dim] != 1)
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{
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outDimension[dim] = 1 + (lastIndex[dim] / sample[dim]);
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if (includeBoundary == true && (lastIndex[dim] % sample[dim] != 0))
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{
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outDimension[dim] += 1;
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}
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}
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}
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vtkm::Vec<vtkm::FloatDefault, 3> outOrigin = vtkm::make_Vec(0, 0, 0);
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vtkm::Vec<vtkm::FloatDefault, 3> outSpacing = vtkm::make_Vec(1, 1, 1);
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// Create output dataset which needs modified coordinate system and cellset
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vtkm::cont::DataSet output;
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// Set the output CoordinateSystem information
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UniformArrayHandle outCoordinateData(outDimension, outOrigin, outSpacing);
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vtkm::cont::CoordinateSystem outCoordinates(coordinates.GetName(), outCoordinateData);
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output.AddCoordinateSystem(outCoordinates);
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// Set the output cellset
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if (outDim == 3)
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{
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vtkm::cont::CellSetStructured<3> outCellSet(cellSet.GetName());
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outCellSet.SetPointDimensions(
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vtkm::make_Vec(outDimension[0], outDimension[1], outDimension[2]));
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output.AddCellSet(outCellSet);
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}
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else if (outDim == 2)
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{
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vtkm::cont::CellSetStructured<2> outCellSet(cellSet.GetName());
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if (outDimension[2] == 1) // XY plane
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{
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outCellSet.SetPointDimensions(vtkm::make_Vec(outDimension[0], outDimension[1]));
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[1] == 1) // XZ plane
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{
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outCellSet.SetPointDimensions(vtkm::make_Vec(outDimension[0], outDimension[2]));
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[0] == 1) // YZ plane
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{
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outCellSet.SetPointDimensions(vtkm::make_Vec(outDimension[1], outDimension[2]));
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output.AddCellSet(outCellSet);
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}
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}
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else if (outDim == 1)
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{
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vtkm::cont::CellSetStructured<1> outCellSet(cellSet.GetName());
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if (outDimension[1] == 1 && outDimension[2] == 1)
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{
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outCellSet.SetPointDimensions(outDimension[0]);
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[0] == 1 && outDimension[2] == 1)
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{
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outCellSet.SetPointDimensions(outDimension[1]);
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[0] == 1 && outDimension[1] == 1)
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{
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outCellSet.SetPointDimensions(outDimension[2]);
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output.AddCellSet(outCellSet);
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}
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}
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// Create the map for the input point data to output
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vtkm::cont::ArrayHandleIndex pointIndices(cellSet.GetNumberOfPoints());
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CreatePointMap pointMap(inDimension, outBounds, sample, includeBoundary);
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vtkm::worklet::DispatcherMapField<CreatePointMap> pointDispatcher(pointMap);
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pointDispatcher.Invoke(pointIndices, this->PointMap);
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// Create the map for the input cell data to output
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CreateCellMap cellMap(inDimension, outDimension);
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vtkm::worklet::DispatcherMapTopology<CreateCellMap> cellDispatcher(cellMap);
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cellDispatcher.Invoke(cellSet, this->PointMap, this->CellMap);
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return output;
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}
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//
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// Rectilinear Structured
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//
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template <typename CellSetType, typename DeviceAdapter>
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vtkm::cont::DataSet ExtractRectilinear(vtkm::IdComponent outDim,
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const CellSetType& cellSet,
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const vtkm::cont::CoordinateSystem& coordinates,
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const vtkm::Bounds& outBounds,
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const vtkm::Id3& sample,
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bool includeBoundary,
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DeviceAdapter)
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{
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typedef vtkm::cont::ArrayHandle<vtkm::FloatDefault> DefaultHandle;
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typedef vtkm::cont::ArrayHandleCartesianProduct<DefaultHandle, DefaultHandle, DefaultHandle>
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CartesianArrayHandle;
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typedef typename DefaultHandle::ExecutionTypes<DeviceAdapter>::PortalConst DefaultConstHandle;
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typedef typename CartesianArrayHandle::ExecutionTypes<DeviceAdapter>::PortalConst
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CartesianConstPortal;
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// Cast dynamic coordinate data to Rectilinear type
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vtkm::cont::DynamicArrayHandleCoordinateSystem coordinateData = coordinates.GetData();
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CartesianArrayHandle inCoordinates;
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inCoordinates = coordinateData.Cast<CartesianArrayHandle>();
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CartesianConstPortal Coordinates = inCoordinates.PrepareForInput(DeviceAdapter());
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DefaultConstHandle X = Coordinates.GetFirstPortal();
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DefaultConstHandle Y = Coordinates.GetSecondPortal();
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DefaultConstHandle Z = Coordinates.GetThirdPortal();
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vtkm::Id3 inDimension(X.GetNumberOfValues(), Y.GetNumberOfValues(), Z.GetNumberOfValues());
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// Calculate output subset dimension
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vtkm::Id3 lastIndex = vtkm::make_Vec(outBounds.X.Max - outBounds.X.Min,
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outBounds.Y.Max - outBounds.Y.Min,
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outBounds.Z.Max - outBounds.Z.Min);
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vtkm::Id3 outDimension = lastIndex + vtkm::Id3(1, 1, 1);
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// Adjust for sampling and include boundary
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for (vtkm::IdComponent dim = 0; dim < outDim; dim++)
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{
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if (sample[dim] != 1)
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{
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outDimension[dim] = 1 + lastIndex[dim] / sample[dim];
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if (includeBoundary == true && (lastIndex[dim] % sample[dim] != 0))
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{
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outDimension[dim] += 1;
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}
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}
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}
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// Set output coordinate system
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DefaultHandle Xc, Yc, Zc;
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Xc.Allocate(outDimension[0]);
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Yc.Allocate(outDimension[1]);
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Zc.Allocate(outDimension[2]);
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vtkm::Id indx = 0;
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vtkm::Id3 minBound = vtkm::make_Vec(outBounds.X.Min, outBounds.Y.Min, outBounds.Z.Min);
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vtkm::Id3 maxBound = vtkm::make_Vec(outBounds.X.Max, outBounds.Y.Max, outBounds.Z.Max);
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for (vtkm::Id x = minBound[0]; x <= maxBound[0]; x++)
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{
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if ((x % sample[0]) == 0)
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{
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Xc.GetPortalControl().Set(indx++, X.Get(x));
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}
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}
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indx = 0;
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for (vtkm::Id y = minBound[1]; y <= maxBound[1]; y++)
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{
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if ((y % sample[1]) == 0)
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{
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Yc.GetPortalControl().Set(indx++, Y.Get(y));
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}
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}
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indx = 0;
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for (vtkm::Id z = minBound[2]; z <= maxBound[2]; z++)
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{
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if ((z % sample[2]) == 0)
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{
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Zc.GetPortalControl().Set(indx++, Z.Get(z));
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}
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}
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// Create output dataset which needs modified coordinate system and cellset
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vtkm::cont::DataSet output;
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// Set the output CoordinateSystem information
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CartesianArrayHandle outCoordinateData(Xc, Yc, Zc);
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vtkm::cont::CoordinateSystem outCoordinates(coordinates.GetName(), outCoordinateData);
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output.AddCoordinateSystem(outCoordinates);
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// Set the output cellset
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if (outDim == 3)
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{
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vtkm::cont::CellSetStructured<3> outCellSet(cellSet.GetName());
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outCellSet.SetPointDimensions(
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vtkm::make_Vec(outDimension[0], outDimension[1], outDimension[2]));
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output.AddCellSet(outCellSet);
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}
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else if (outDim == 2)
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{
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vtkm::cont::CellSetStructured<2> outCellSet(cellSet.GetName());
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if (outDimension[2] == 1) // XY plane
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{
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outCellSet.SetPointDimensions(vtkm::make_Vec(outDimension[0], outDimension[1]));
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[1] == 1) // XZ plane
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{
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outCellSet.SetPointDimensions(vtkm::make_Vec(outDimension[0], outDimension[2]));
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[0] == 1) // YZ plane
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{
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outCellSet.SetPointDimensions(vtkm::make_Vec(outDimension[1], outDimension[2]));
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output.AddCellSet(outCellSet);
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}
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}
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else if (outDim == 1)
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{
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vtkm::cont::CellSetStructured<1> outCellSet(cellSet.GetName());
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if (outDimension[1] == 1 && outDimension[2] == 1)
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{
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outCellSet.SetPointDimensions(outDimension[0]);
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[0] == 1 && outDimension[2] == 1)
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{
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outCellSet.SetPointDimensions(outDimension[1]);
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output.AddCellSet(outCellSet);
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}
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else if (outDimension[0] == 1 && outDimension[1] == 1)
|
|
{
|
|
outCellSet.SetPointDimensions(outDimension[2]);
|
|
output.AddCellSet(outCellSet);
|
|
}
|
|
}
|
|
|
|
// Create the map for the input point data to output
|
|
vtkm::cont::ArrayHandleIndex pointIndices(cellSet.GetNumberOfPoints());
|
|
CreatePointMap pointMap(inDimension, outBounds, sample, includeBoundary);
|
|
vtkm::worklet::DispatcherMapField<CreatePointMap> pointDispatcher(pointMap);
|
|
pointDispatcher.Invoke(pointIndices, this->PointMap);
|
|
|
|
// Create the map for the input cell data to output
|
|
CreateCellMap cellMap(inDimension, outDimension);
|
|
vtkm::worklet::DispatcherMapTopology<CreateCellMap> cellDispatcher(cellMap);
|
|
cellDispatcher.Invoke(cellSet, this->PointMap, this->CellMap);
|
|
|
|
return output;
|
|
}
|
|
|
|
//
|
|
// Run extract structured on uniform or rectilinear, subset and/or subsample
|
|
//
|
|
template <typename DeviceAdapter>
|
|
vtkm::cont::DataSet Run(const vtkm::cont::DynamicCellSet& cellSet,
|
|
const vtkm::cont::CoordinateSystem& coordinates,
|
|
const vtkm::Bounds& boundingBox,
|
|
const vtkm::Id3& sample,
|
|
bool includeBoundary,
|
|
DeviceAdapter)
|
|
{
|
|
// Check legality of input cellset and set input dimension
|
|
vtkm::IdComponent inDim = 0;
|
|
if (cellSet.IsSameType(vtkm::cont::CellSetStructured<1>()))
|
|
{
|
|
inDim = 1;
|
|
}
|
|
else if (cellSet.IsSameType(vtkm::cont::CellSetStructured<2>()))
|
|
{
|
|
inDim = 2;
|
|
}
|
|
else if (cellSet.IsSameType(vtkm::cont::CellSetStructured<3>()))
|
|
{
|
|
inDim = 3;
|
|
}
|
|
else
|
|
{
|
|
throw vtkm::cont::ErrorBadType("Only Structured cell sets allowed");
|
|
return vtkm::cont::DataSet();
|
|
}
|
|
|
|
// Check legality of requested bounds
|
|
if (boundingBox.IsNonEmpty() == false)
|
|
{
|
|
throw vtkm::cont::ErrorBadValue("Requested bounding box is not valid");
|
|
return vtkm::cont::DataSet();
|
|
}
|
|
|
|
// Check legality of sampling
|
|
if (sample[0] < 1 || sample[1] < 1 || sample[2] < 1)
|
|
{
|
|
throw vtkm::cont::ErrorBadValue("Requested sampling is not valid");
|
|
return vtkm::cont::DataSet();
|
|
}
|
|
|
|
// Requested bounding box intersection with input bounding box
|
|
vtkm::Bounds inBounds = coordinates.GetBounds();
|
|
vtkm::Bounds outBounds = boundingBox;
|
|
|
|
if (outBounds.X.Min < inBounds.X.Min)
|
|
outBounds.X.Min = inBounds.X.Min;
|
|
if (outBounds.X.Max > inBounds.X.Max)
|
|
outBounds.X.Max = inBounds.X.Max;
|
|
if (outBounds.Y.Min < inBounds.Y.Min)
|
|
outBounds.Y.Min = inBounds.Y.Min;
|
|
if (outBounds.Y.Max > inBounds.Y.Max)
|
|
outBounds.Y.Max = inBounds.Y.Max;
|
|
if (outBounds.Z.Min < inBounds.Z.Min)
|
|
outBounds.Z.Min = inBounds.Z.Min;
|
|
if (outBounds.Z.Max > inBounds.Z.Max)
|
|
outBounds.Z.Max = inBounds.Z.Max;
|
|
|
|
// Bounding box intersects
|
|
if (outBounds.IsNonEmpty() == false)
|
|
{
|
|
throw vtkm::cont::ErrorBadValue("Bounding box does not intersect input");
|
|
return vtkm::cont::DataSet();
|
|
}
|
|
|
|
// Set output dimension based on bounding box and input dimension
|
|
vtkm::IdComponent outDim = 0;
|
|
if (outBounds.X.Min < outBounds.X.Max)
|
|
outDim++;
|
|
if (outBounds.Y.Min < outBounds.Y.Max)
|
|
outDim++;
|
|
if (outBounds.Z.Min < outBounds.Z.Max)
|
|
outDim++;
|
|
if (outDim > inDim)
|
|
outDim = inDim;
|
|
|
|
// Uniform, Regular or Rectilinear
|
|
typedef vtkm::cont::ArrayHandleUniformPointCoordinates UniformArrayHandle;
|
|
bool IsUniformDataSet = 0;
|
|
if (coordinates.GetData().IsSameType(UniformArrayHandle()))
|
|
{
|
|
IsUniformDataSet = true;
|
|
}
|
|
if (IsUniformDataSet)
|
|
{
|
|
return ExtractUniform(
|
|
outDim, cellSet, coordinates, outBounds, sample, includeBoundary, DeviceAdapter());
|
|
}
|
|
else
|
|
{
|
|
return ExtractRectilinear(
|
|
outDim, cellSet, coordinates, outBounds, sample, includeBoundary, DeviceAdapter());
|
|
}
|
|
}
|
|
|
|
//
|
|
// Subset and/or subsampling of Point Data
|
|
//
|
|
template <typename T, typename StorageType, typename DeviceAdapter>
|
|
vtkm::cont::ArrayHandle<T, StorageType> ProcessPointField(
|
|
const vtkm::cont::ArrayHandle<T, StorageType>& input,
|
|
DeviceAdapter device)
|
|
{
|
|
vtkm::cont::ArrayHandle<T, StorageType> output;
|
|
|
|
DistributeData distribute(this->PointMap, device);
|
|
vtkm::worklet::DispatcherMapField<DistributeData, DeviceAdapter> dispatch(distribute);
|
|
dispatch.Invoke(input, output);
|
|
return output;
|
|
}
|
|
|
|
//
|
|
// Subset and/or subsampling of Cell Data
|
|
//
|
|
template <typename T, typename StorageType, typename DeviceAdapter>
|
|
vtkm::cont::ArrayHandle<T, StorageType> ProcessCellField(
|
|
const vtkm::cont::ArrayHandle<T, StorageType>& input,
|
|
DeviceAdapter device)
|
|
{
|
|
vtkm::cont::ArrayHandle<T, StorageType> output;
|
|
|
|
DistributeData distribute(this->CellMap, device);
|
|
vtkm::worklet::DispatcherMapField<DistributeData, DeviceAdapter> dispatch(distribute);
|
|
dispatch.Invoke(input, output);
|
|
return output;
|
|
}
|
|
|
|
private:
|
|
vtkm::cont::ArrayHandle<vtkm::IdComponent> PointMap;
|
|
vtkm::cont::ArrayHandle<vtkm::IdComponent> CellMap;
|
|
};
|
|
}
|
|
} // namespace vtkm::worklet
|
|
|
|
#endif // vtk_m_worklet_ExtractStructured_h
|